@article{10_4153_CMB_1968_003_x,
     author = {Heinicke, A.G.},
     title = {A {Note} on {Lower} {Radical} {Constructions} for {Associative} {Rings}},
     journal = {Canadian mathematical bulletin},
     pages = {23--30},
     year = {1968},
     volume = {11},
     number = {1},
     doi = {10.4153/CMB-1968-003-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-003-x/}
}